Burner



March 23 1926. 1,578,133 A. KAls BURNER Filed June 22, 1925 42 iii INVENTOR 125 Zclzille [fizz 5.

ATTORNEYS Patented Mar. 23, 1926.

UNITED STATES AOHILLE KAIS, OF HIGHLAND PARK, MICHIGAN.

BURNER.

Application filed June 22, 1928. Serial no. 647,113.

To all whom it may concern: Be it known that I, ACHILLE Kale, a c1t1- zen of the United States of Amenca, and a resident of Highland Park, in the county of Wayne and State of Michigan, have invented a new and Improved Burner, of

which the following is a description.

My invention relates to fluid fuel burners and has' for its general object to provide a burner improved in various particulars especially with a view to efliciently control the oil feed to the burner assemblage, the control of air supplied through a cyclone air chamber in the burner assemblage as well as to provide an assemblage reflecting practical considerations with respect to simplicity of assembling, adjustment and control.

The nature of the invention and its distinguishing features and advantages w1ll clearly appear as the description proceeds.

Reference is to be had to the accompanying drawings forming a part of tlus specification, it being understood that the draw ings are merely illustrative of practical examples of the invention.

Figure 1 is a side elevation of a burner and its appurtenances embodying my invention showing the same installed in connection with a furnace illustrated partly in elevation and partly in vertical section;

Figure 2 is an enlarged vertical section through the burner proper or fire pot assemblage.

In the illustrated example of my invention a supply tank is provided having an inlet plpe 16 connected with a main supply pipe 17 leading from any suitable source, the pipe 16 connecting also with an oil filter 18. Said pipe 16 has a shut-off valve and the pipe 17 has a shut-off valve 19. By manipulating the valves 19 and 20 oil may be directed from pipe 17 to tank 15 for fill-z ing the latter and with the valve 19 then closed, and valve 20 opened, oil will flow from tank 15 to filter 18.

The described features form no part of the invention but are shown as one means to direct oil to pipe 23 hereinafter referred to for supplying fuel to the burner;

Filter 18 connects by a pipe 21 with a pressure reducing tank 22 from which a pipe 23 leads to the uptake inlet pipe 24 of an oil level control reservoir 25-.- From reservoir 25 the oil passes by a pipe 26 to the inlet 27 ring upstanding nozzle 28 in which is a vertical spindle 29 extending through the top of the nozzle 28 and provided with a spreader fan 30 formed with a depressed conical center and with peripheral blades 31 disposed above an air spreader head 32 on nozzle 28, said head 32 flaring in general conformity with the depressed conical center of the fan 30. Thus, the oil passes from nozzle 28 between the fan 30 and the air spreader head 32. The air spreader 32 is abovethe cyclone air box 33 having an air draft ring and guard 34, below and outside of the fan 31. The guard ring 34 is supported on a collar 35 rigidwith diametrically opposite arms 36 on a hub 37 fast on nozzle 28. Above the fan 30 and guard ring 34 is a flame curving ring 38 to produce the flame in a ring form, thereby giving a cold center burner. Said flame ring 38 has a cover 39. The ring 38. rests on a fire butt ring 40 in flaring form and disposed outside of the fan .30 and air draft ard ring 34, so that a mixture of oil and air will be directed outwardly by the fan 30 in ring form between the upper flame curving ring 38 and the lower flame fire butt ring 40, against which the fuel mixture impinges. By the described fire pot burner devlces air under pressure from a fan hereinafter described will rise in the cyclone air box 33 and pass upwardly and out beneath the spreader ring 32 between the same and the draft ring 34. At'the same time oil will be caused to flow between the fan 30 and 32. The outflowing air revolves the fan rapidly and the oil coming in contact with the conical depressed center of said fan will spread a thin film to the fan blades into intimate contact with the air directed against the fan blades so that the air wipes off the thin film of oil in a finely atomized form, a thorough mixture of the oil and air occurring as the two pass radially outward over the upper surface of the guard ring 34, the ignited fuel impinging against the butt ring 40 and curving upwardly about the upper ring 38 and cover 39.

Any heavy ingredients in the liquid fuel that' may accumulate in the fire butt ring 40 will flow over the inner edge thereof to an oil collecting ring-shaped pan 42 having a flange 41 supporting the ring 40. .Oil rmg 42 has a spout 43 at the inner edge so that the oil will drip into the air box 33 from which it may flow by a drip pipe 44 to a drip pan 46 to be hereinafter referred to.

The air box 33 has an air inlet 52 to which is connected the air pipe 53 leading from the discharge of a blower fan 54. An air valve or damper 55 of disk formed is adapted to move in its own plane, over the air inlet 56, of fan 54 for controlling the amount of air drawn into the fan. Air valve 55 is adjustably mounted on a rod 57 supported on blower 54.

The fan 54 is shown supported on vertical spindle 62 of a stand 63.

The drip pan 46 is suspended on an arm 70 between the ends of a lever 71 having a fork 73 but this feature does not form part of the invention claimed herein and need not be further described. I would here mention that the burner assemblage may be sustained directly in the furnace by a tripod 133 supporting the air box 33. The numeral 84 indicates a thermostatic wire which forms no part of the invention claimed herein.

The described burner assemblage (Figure 2) is provided with a pilot lighting device including an annular gas pipe 101 having jet orifices 102 adjacent the draft ring guard 34 below the same to produce a flame rising between said guard ring 34 and the butt ring 40. The annular pipe 101 may be supplied in any suitable manner, there being indicated in Figure 2 a gas pipe 103.

I would state in conclusion that while the illustrated examples constitute practical emsuitably bodiments of my invention, I do not limit myself strictly to the exact details herein illustrated, since, manifestly, the same can be considerably varied without departure from the spirit of the invention as defined in the appended claims.

Having thus described my invention, I claim:

1. In a burner, a fuel mixing fan, means to deliver liquid fuel against the fan, and means to direct a current of air against the fan to revolve the same and to mix with said fuel, said first mentioned means including an element adjacent to the fan between which element and the fan the fuel passes, means forming a passage for the air to the fan outside of said element; in combination with a draft guard ring outward of the said fan and said element; and a flame spreading ring above and of larger radius than the draft guard ring.

2. In a burner, a fuel mixing fan, means to deliver liquid fuel against the fan, and means to direct a current of air against the fan to revolve the same and to mix with said fuel, first mentioned means including an element adjacent to the fan between which element and the fan the fuel passes, means forming a passage for the air to the fan outside of said element; in combination with a draft guard ring outward of the said fan and said element; and a flame spreading ring above and of larger radius than the draft guard ring; and a fire butt ring outside of the draft guard ring below said Spreader ring' ACHILLE KAIS 

